Highland Cottage Wall (Composite)

Taken all the way down to base materials, one Highland Cottage Wall (Composite) is 3 crafting steps deep and needs 6 intermediates — Dark Chestnut Lumber ×10, Clear Glass Lens ×5, Firebricks ×5 and 3 others — which resolve to 10 distinct raw materials totalling 140 units, plus 120 crystals.

That bill outweighs 13,524 of the 13,602 recipes tracked here and 1,580 of the 1,591 Alchemist ones, and 337 recipes nest deeper.

Only 20 of those crystals go into the final step; the other 100 are burned by the intermediates, so the real crystal cost is 40 Wind Crystal, 30 Fire Crystal, 30 Water Shard and 2 other kinds.

The chain crosses three disciplines — Alchemist to Lv 60, Carpenter to Lv 54 and Blacksmith to Lv 52 — so no single class can finish it unaided.

All 10 raw materials are gathered, and not one of their spots is timed, so nothing in the tree waits on the Eorzean clock.

Of the intermediates, Mythrite Nugget has the widest use: 102 recipes call for it, spanning seven of the eight crafting classes.